ash: Make sure the uber-tray popup is positioned correctly.

chrome/browser/chromeos/login/webui_login_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/webui_login_view.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 216 matching lines @@
   dialog->Show();
 }
 
 void WebUILoginView::SetStatusAreaEnabled(bool enable) {
   if (status_area_)
     status_area_->MakeButtonsActive(enable);
 }
 
 void WebUILoginView::SetStatusAreaVisible(bool visible) {
   ash::SystemTray* tray = ash::Shell::GetInstance()->tray();
-  if (tray)
-    tray->SetVisible(visible);
+  if (tray) {
+    if (visible)
+      tray->GetWidget()->Show();
+    else
+      tray->GetWidget()->Hide();
+  }
   if (status_area_)
     status_area_->SetVisible(visible);
   else
     status_area_visibility_on_init_ = visible;
 }
 
 // WebUILoginView protected: ---------------------------------------------------
 
 void WebUILoginView::Layout() {
   DCHECK(webui_login_);
@@ skipping 175 matching lines @@
 }
 
 void WebUILoginView::ReturnFocus(bool reverse) {
   // Return the focus to the web contents.
   webui_login_->dom_contents()->web_contents()->
       FocusThroughTabTraversal(reverse);
   GetWidget()->Activate();
 }
 
 }  // namespace chromeos